US 4,357,410 A · Photographic products and processes employing novel nondiffusible pyridylazo(dialkylamino) phenol magenta dye-releasing compounds and precursors thereof

Abstract

Photographic elements, diffusion transfer assemblages and processes are described which employ a novel nondiffusible compound having a releasable, pyridylazo(dialkylamino)phenol magenta dye moiety or precursor thereof, having the formula: ##STR1## wherein: (a) R represents hydrogen, a hydrolyzable moiety, or may be taken together with the NHSO.sub.2 group to which it is attached to form CAR; (b) R.sup.1 represents hydrogen, a hydrolyzable moiety or CAR; (c) R.sup.2 and R.sup.3 each independently represents hydrogen, CAR, an alkyl group of 1 to about 6 carbon atoms, or they can be taken together with the nitrogen to which they are attached to form a 5- or 6-membered heterocyclic ring, or one of R.sup.2 and R.sup.3 can be an aryl group having from 6 to about 10 carbon atoms; and (d) CAR represents a ballasted carrier moiety capable of releasing the diffusible magenta dye moiety or precursor thereof under alkaline conditions; with the proviso that at least one of R, R.sup.1, R.sup.2 and R.sup.3 is CAR.

Claims33

Dependent claims

In a photographic element comprising a support having thereon at least one photosensitive silver halide emulsion layer, said emulsion layer having associated therewith a dye image-providing material, the improvement wherein said dye image-providing material is a nondiffusible compound having a releasable, pyridylazo(dialkylamino)phenol magenta dye moiety or precursor thereof, said compound having the formula:

##STR22## wherein:
(a) R represents hydrogen, a hydrolyzable moiety, or may be taken together with the NHSO.sub.2 group to which it is attached to form CAR;
(b) R.sup.1 represents hydrogen, a hydrolyzable moiety or CAR;
(c) R.sup.2 and R.sup.3 each independently represents hydrogen, CAR, an alkyl group of 1 to about 6 carbon atoms, or they can be taken together with the nitrogen to which they are attached to form a 5- or 6-membered heterocyclic ring, or one of said R.sup.2 and R.sup.3 can be an aryl group having from 6 to about 10 carbon atoms;
and
(d) CAR represents a ballasted carrier moiety capable of releasing said diffusible magenta dye moiety or precursor thereof as a function of development of said silver halide emulsion layer under alkaline conditions;
with the proviso that at least one of R, R.sup.1, R.sup.2 and R.sup.3 is CAR.

4 more elements

In an integral photographic assemblage comprising:

(a) a photosensitive element comprising a transparent support having thereon the following layers in sequence:
a dye image-receiving layer, an alkaline solution-permeable, light-reflective layer, an alkaline solution-permeable, opaque layer, a red-sensitive silver halide emulsion layer having a ballasted cyan dye releaser associated therewith, a green-sensitive silver halide emulsion layer having a ballasted magenta dye releaser associated therewith, and a blue-sensitive silver halide emulsion layer having a ballasted yellow dye releaser associated therewith;
(b) a transparent sheet superposed over said blue-sensitive silver halide emulsion layer and comprising a transparent support having thereon, in sequence, a neutralizing layer and a timing layer;
and
(c) a rupturable container containing an alkaline processing composition and an opacifying agent which is so positioned during processing of said assemblage that compressive force applied to said container will effect a discharge of the container's contents between said transparent sheet and said blue-sensitive silver halide emulsion layer;
said assemblage containing a silver halide developing agent;
the improvement wherein said ballasted magenta dye releaser is a nondiffusible compound having a releasable, pyridylazo(dialkylamino)phenol magenta dye moiety or precursor thereof, said compound having the formula:
##STR31## wherein:
(a) R represents hydrogen, a hydrolyzable moiety, or may be taken together with the NHSO.sub.2 group to which it is attached to form CAR;
(b) R.sup.1 represents hydrogen, a hydrolyzable moiety or CAR;
(c) R.sup.2 and R.sup.3 each independently represents hydrogen, CAR, an alkyl group of 1 to about 6 carbon atoms, or they can be taken together with the nitrogen to which they are attached to form a 5- or 6-membered heterocyclic ring, or one of said R.sup.2 and R.sup.3 can be an aryl group having from 6 to about 10 carbon atoms;
and
(d) CAR represents a ballasted carrier moiety capable of releasing said diffusible magenta dye moiety or precursor thereof as a function of development of said silver halide emulsion layer under alkaline conditions;
with the proviso that at least one of R, R.sup.1,
R.sup.2 and R.sup.3 is CAR.

12 more elements

A process for producing a photographic transfer image in color in an imagewise-exposed photographic element comprising a support having thereon at least one photosensitive silver halide emulsion layer, said emulsion layer having associated therewith a nondiffusible compound having a releasable, pyridylazo(dialkylamino)phenol magenta dye moiety or precursor thereof, said compound having the formula:

##STR32## wherein:
(a) R represents hydrogen, a hydrolyzable moiety, or may be taken together with the NHSO.sub.2 group to which it is attached to form CAR;
(b) R.sup.1 represents hydrogen, a hydrolyzable moiety or CAR;
(c) R.sup.2 and R.sup.3 each independently represents hydrogen, CAR, an alkyl group of 1 to about 6 carbon atoms, or they can be taken together with the nitrogen to which they are attached to form a 5- or 6-membered heterocyclic ring, or one of said R.sup.2 and R.sup.3 can be an aryl group having from 6 to about 10 carbon atoms;
and
(d) CAR represents a ballasted carrier moiety capable of releasing said diffusible magenta dye moiety or precursor thereof as a function of development of said silver halide emulsion layer under alkaline conditions;
with the proviso that at least one of R, R.sup.1,
R.sup.2 and R.sup.3 is CAR;
said process comprising:
(a) treating said photographic element with an alkaline processing composition in the presence of a silver halide developing agent to effect development of each of the exposed silver halide emulsion layers;
(b) said dye-releasing compound then releasing said diffusible pyridylazo(dialkylamino)phenol magenta dye or precursor thereof imagewise as a function of said development of each of said silver halide emulsion layers;
(c) at least a portion of said imagewise distribution of said pyridylazo(dialkylamino)phenol magenta dye or precursor thereof diffusing to a dye image-receiving layer;
and
(d) contacting said imagewise distribution of said pyridylazo(dialkylamino)phenol magenta dye or precursor thereof with metal ions, thereby forming a metal-complexed, pyridylazo(dialkylamino)phenol dye transfer image.

11 more elements

Dependencies are inferred from the claim text.

Photographic products and processes employing novel nondiffusible pyridylazo(dialkylamino) phenol magenta dye-releasing compounds and precursors thereof

Life of this patent

Photographic products and processes employing novel nondiffusible pyridylazo(dialkylamino) phenol magenta dye-releasing compounds and precursors thereof

Life of this patent

Abstract

Claims33